1 // SPDX-License-Identifier: GPL-2.0+
4 * (C) Copyright 2000-2003
7 * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
18 #include <asm/global_data.h>
20 #include <asm/immap.h>
23 DECLARE_GLOBAL_DATA_PTR;
25 int do_reset(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
27 ccm_t *ccm = (ccm_t *) MMAP_CCM;
29 out_8(&ccm->rcr, CCM_RCR_SOFTRST);
30 /* we don't return! */
34 #if defined(CONFIG_DISPLAY_CPUINFO)
35 int print_cpuinfo(void)
37 ccm_t *ccm = (ccm_t *) MMAP_CCM;
43 msk = (in_be16(&ccm->cir) >> 6);
44 ver = (in_be16(&ccm->cir) & 0x003f);
52 char buf1[32], buf2[32];
54 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
56 printf(" CPU CLK %s MHz BUS CLK %s MHz\n",
57 strmhz(buf1, gd->cpu_clk),
58 strmhz(buf2, gd->bus_clk));
63 #endif /* CONFIG_DISPLAY_CPUINFO */
65 #if defined(CONFIG_WATCHDOG)
66 /* Called by macro WATCHDOG_RESET */
67 void watchdog_reset(void)
69 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
72 out_be16(&wdp->sr, 0x5555);
74 out_be16(&wdp->sr, 0xaaaa);
77 int watchdog_disable(void)
79 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
81 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
82 /* halted watchdog timer */
83 setbits_be16(&wdp->cr, WTM_WCR_HALTED);
85 puts("WATCHDOG:disabled\n");
89 int watchdog_init(void)
91 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
94 /* set timeout and enable watchdog */
95 wdog_module = ((CONFIG_SYS_CLK / CONFIG_SYS_HZ) * CONFIG_WATCHDOG_TIMEOUT);
96 wdog_module |= (wdog_module / 8192);
97 out_be16(&wdp->mr, wdog_module);
99 out_be16(&wdp->cr, WTM_WCR_EN);
100 puts("WATCHDOG:enabled\n");
104 #endif /* CONFIG_WATCHDOG */
106 #if defined(CONFIG_MCFFEC)
107 /* Default initializations for MCFFEC controllers. To override,
108 * create a board-specific function called:
109 * int board_eth_init(struct bd_info *bis)
112 int cpu_eth_init(struct bd_info *bis)
114 return mcffec_initialize(bis);